I purchased my 2016 OLED in 2017 as it was the last of the 3-D models. I love it, but yeah, every television I've owned including the OLED really need adjustments. In most modes, the video noise reduction is on by default. Add to that smooth /clear motion is typically on by default as well. Gives everything the soap opera effect but worst of all, like every on the fly frame interpolation I've seen, with demanding material there will be artifacts. Then there's the dynamic contrast modes, boosted contrast, etc .. Off.. off.. off.. A good calibration disc does wonders and makes a set like this even better. but for those who avoid such things, the best preset modes by far are the LG ISF daytime and nighttime modes and at least will get ya something closer to accurate.
By far the best thing I've enjoyed about OLED tech is the amazing black levels. Have worked in television my entire life plus film restoration work and in the process have worked with very expensive monitors over the years, but OLED's ability to have literally each pixel have full on / off capability offers blacks I have never seen before. If white titles are over a black screen, when titles fade out the set literally looks like it is off, as the blacks are that deep. Some of the best OLED demos are stars at night. A full deep black sky with crisp pin point accurate white stars. Truly amazing and even LG's own top of the line LED set with multiple dimming zones can't come close to their OLED models. Was able to see special test patterns with a tech from LG, and while some tests came close with their top of the line LED set, things like a starfield with multiple high contrast spots are easily superior with OLED. But here's what makes it the best feature for me: unlike 4K, 3-D, HDR.., deep color, or even 1080p bluray that requires either a special source and or encode / decode process .. *any* video content will benefit from OLED display tech.. be it bluray, DVD, 4K, 3-D, HDR, or any combinations possible. (HDR of course also takes advantage of these increased black level resolution) OLED also offers a wide color gamut that while is optimal with newer formats, still also visibly helps legacy formats.
I bought it for my 3-D work and still use it primarily for that use, but would also highly recommend a 2-D model as well.